// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Author: wsfuyibing <682805@qq.com>
// Date: 2024-11-30

package managers

import (
	"gitee.com/go-libs/log"
	"gitee.com/gomq/scheduler_http"
	"gitee.com/gomq/servlet_rabbitmq"
	"gitee.com/gomq/sr"
	"sync"
)

var once = new(sync.Once)

func init() {
	once.Do(func() {
		// Create
		// singleton instance of the manager.
		singleton = (&manager{}).init()

		// Add scheduler protocols
		// to dispatch received message to endpoint.
		for protocol, builder := range map[sr.Protocol]sr.SchedulerBuilder{
			sr.ProtocolHttp:  scheduler_http.Builder,
			sr.ProtocolHttps: scheduler_http.Builder,
		} {
			if err := singleton.Supporter().AddScheduler(builder, protocol); err != nil {
				log.Errorf(`[managers.init] add scheduler into supporter: %v`, err)
			}
		}

		// Add servlet plugins
		// to receive messages from queue and publish payloads to topics.
		for plugin, builder := range map[sr.Plugin]sr.ServletBuilder{
			sr.PluginRabbitmq: servlet_rabbitmq.Builder,
		} {
			if err := singleton.Supporter().AddServlet(builder, plugin); err != nil {
				log.Errorf(`[managers.init] add servlet into supporter: %v`, err)
			}
		}
	})
}
